{"id":3981,"date":"2025-11-03T13:07:10","date_gmt":"2025-11-03T13:07:10","guid":{"rendered":"https:\/\/liverpoolname.com\/?p=3981"},"modified":"2026-01-25T11:34:08","modified_gmt":"2026-01-25T11:34:08","slug":"the-approach-to-protecting-and-restoring-the-banks-of-the-mersey-estuary","status":"publish","type":"post","link":"https:\/\/liverpoolname.com\/en\/eternal-3981-the-approach-to-protecting-and-restoring-the-banks-of-the-mersey-estuary","title":{"rendered":"The Mersey Estuary: how the approach to shoreline protection and restoration is changing"},"content":{"rendered":"\n<p>For much of the 20th century, the Mersey Estuary was treated as an industrial utility rather than a living system. Its waters and coastal canals received the waste of chemical plants, factories, and the city\u2019s sewage systems. Today, the picture is entirely different. The Mersey Estuary has become a testing ground for a new ecological logic: you don\u2019t fight nature \u2014 you come to terms with it. What has changed? Who is behind the \u201cre-education\u201d of the Mersey? And why can a shoreline reinforced by marshland be more reliable than concrete? More in our report on <a href=\"http:\/\/liverpoolname.com\" target=\"_blank\" rel=\"noopener\">liverpoolname.com<\/a>.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-6a4b0aee30e38\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a4b0aee30e38\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/liverpoolname.com\/en\/eternal-3981-the-approach-to-protecting-and-restoring-the-banks-of-the-mersey-estuary\/#What_an_Estuary_is_and_What_the_Mersey_Estuary_is_Like\" >What an Estuary is, and What the Mersey Estuary is Like<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/liverpoolname.com\/en\/eternal-3981-the-approach-to-protecting-and-restoring-the-banks-of-the-mersey-estuary\/#How_the_River_Mersey_Estuary_Fared_in_the_20th_Century%E2%80%A6_and_Didnt_Die\" >How the River Mersey Estuary Fared in the 20th Century&#8230; and Didn&#8217;t Die<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/liverpoolname.com\/en\/eternal-3981-the-approach-to-protecting-and-restoring-the-banks-of-the-mersey-estuary\/#Where_the_Bank_Disappears_and_Who_Pays_for_It\" >Where the Bank Disappears and Who Pays for It<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/liverpoolname.com\/en\/eternal-3981-the-approach-to-protecting-and-restoring-the-banks-of-the-mersey-estuary\/#Marsh_Against_Concrete_How_Nature_Knows_What_to_Do\" >Marsh Against Concrete: How Nature Knows What to Do<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/liverpoolname.com\/en\/eternal-3981-the-approach-to-protecting-and-restoring-the-banks-of-the-mersey-estuary\/#Who_is_Saving_the_River_Mersey_Projects_Communities_Strategy\" >Who is Saving the River Mersey: Projects, Communities, Strategy<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/liverpoolname.com\/en\/eternal-3981-the-approach-to-protecting-and-restoring-the-banks-of-the-mersey-estuary\/#A_Final_Word\" >A Final Word<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_an_Estuary_is_and_What_the_Mersey_Estuary_is_Like\"><\/span>What an Estuary is, and What the Mersey Estuary is Like<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>An estuary is where a river grows tired of being fresh and decides to mix with the sea. This brackish zone is where life begins in ways that don&#8217;t fit into textbooks: gastropods, migratory birds, resilient coastal plants, and multi-storey food chains. Furthermore, there are tides, mud that nourishes the bank, and a smell that suggests nature is wide awake here.<\/p>\n\n\n\n<p>The estuary lies where <a href=\"https:\/\/liverpoolname.com\/en\/eternal-2081-history-of-the-river-mersey-and-its-importance-to-the-environment\">the River Mersey<\/a> flows into the Irish Sea \u2013 between Liverpool and the Wirral. Ferry routes pass through it, docks line its banks, and over a million people live nearby. But despite this, the estuary remains a territory of wilderness. Under international classification, it holds Ramsar status, meaning the area is vital for migratory birds. Every winter, tens of thousands of mallards, wading birds, and gulls flock here. They are indeed counted \u2013 according to JNCC data, there are over 100,000 such birds here annually.<\/p>\n\n\n\n<p>The saltmarshes, mudflats, and tidal marshes in the Mersey capture carbon, absorb wave energy, and, ironically, cope with flooding better than some infrastructure. That is why environmentalists insist: <strong>these &#8220;marshes&#8221; should not be drained, but restored<\/strong>. Crucially, the Mersey demonstrates that the estuary is an entirely self-sufficient territory with its own rhythm, inhabitants, and challenges. And if you work with it, rather than intervening with a shovel and concrete mixer, it will reciprocate.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_the_River_Mersey_Estuary_Fared_in_the_20th_Century%E2%80%A6_and_Didnt_Die\"><\/span>How the River Mersey Estuary Fared in the 20th Century&#8230; and Didn&#8217;t Die<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"430\" height=\"318\" src=\"https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-11.png\" alt=\"\" class=\"wp-image-3982\" srcset=\"https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-11.png 430w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-11-300x222.png 300w\" sizes=\"auto, (max-width: 430px) 100vw, 430px\" \/><\/figure>\n\n\n\n<p>By the mid-20th century, the Mersey coastline resembled a catalogue of engineering experiments: dredging, concrete walls, river channel straightening, land reclamation. Natural structure? &#8220;Well, it&#8217;s not bad, but we&#8217;ll make it better,&#8221; people decided. Concern for the environment? &#8220;No, we haven&#8217;t heard of it.&#8221; Everything was poured into it \u2013 from industrial waste to urban sewage. The estuary literally suffocated: oxygen levels dropped to zero, fish disappeared, leaving only algae and bacteria that could withstand anything.<\/p>\n\n\n\n<p>In the 1980s, the Mersey was considered one of the most polluted river systems in Europe. The level of contamination of bottom sediments was such that swimming was out of the question \u2013 and not because it was cold. All the conditions for decline were present, but something did not go according to plan. The revival is mainly attributed to the Mersey Basin Campaign \u2013 a campaign that seemed almost utopian at the time. The plan was to bring together local authorities, businesses, communities, and scientists for the idea of bringing life back to the water. They started with the obvious \u2013 sewage treatment plants, emission limits, and water quality monitoring. The results did not come immediately, but they did arrive.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"940\" height=\"645\" src=\"https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-12.png\" alt=\"\" class=\"wp-image-3985\" srcset=\"https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-12.png 940w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-12-300x206.png 300w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-12-768x527.png 768w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-12-218x150.png 218w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-12-696x478.png 696w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><\/figure>\n\n\n\n<p>Subsequently, <a href=\"https:\/\/liverpoolname.com\/en\/eternal-3841-mersey-fishing-a-revival-thanks-to-clean-up\">fish returned<\/a> to the river, and the water became clearer, as it had previously been very rusty. Swimming there is still not recommended, but seagulls and cormorants hold banquets here. Nature is undemanding \u2013 if you don&#8217;t interfere, it will do everything itself.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Where_the_Bank_Disappears_and_Who_Pays_for_It\"><\/span>Where the Bank Disappears and Who Pays for It<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The bank of the Mersey is not static \u2013 it sounds strange, but it&#8217;s true. Sediment is deposited, waves erode, and tides cut the saltmarshes like a knife. Hundreds of hectares of saltmarsh have already disappeared or lost stability. These areas act as buffers \u2013 absorbing wave energy, restraining floods, trapping carbon, and forming a habitat for those very birds, fish, and invertebrates that keep the ecosystem afloat. When they disappear, the waves advance further \u2013 towards concrete, roads, and residential areas.<\/p>\n\n\n\n<p>Add to this sea level rise, more intense storms, and the historical fondness for dredging. This entire campaign significantly accelerates erosion. Channels created for shipping alter the direction of currents and drag the bank with them. Furthermore \u2013 development that creeps right up to the water, and infrastructure that has shackled the river in concrete &#8220;ribs.&#8221;<\/p>\n\n\n\n<p>The natural systems that should stabilise the coastline are being destroyed or isolated. It becomes a vicious circle: the more we &#8220;fortify&#8221; the bank, the faster it loses its ability to hold itself. And then it&#8217;s back to concrete \u2013 and back to costs&#8230; and a new tender.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Marsh_Against_Concrete_How_Nature_Knows_What_to_Do\"><\/span>Marsh Against Concrete: How Nature Knows What to Do<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-14.png\" alt=\"\" class=\"wp-image-3991\" srcset=\"https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-14.png 1024w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-14-300x200.png 300w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-14-768x512.png 768w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-14-696x464.png 696w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Saltmarsh \u2013 the word is not overly poetic. But in ecology, it is one of the most effective tools for coastal protection. It doesn&#8217;t need to be built, repaired after every storm, or painted in corporate colours. It just needs not to be destroyed. Or even better \u2013 restored.<\/p>\n\n\n\n<p>Today, there is increasing talk in the Mersey valley about an approach called &#8220;living coastlines&#8221; \u2013 <strong>where the bank is not concreted, but &#8220;nurtured&#8221;.<\/strong> This can involve restoring saltmarshes, planting coastal vegetation, and bringing back sediment flows that were previously blocked by dams. Such solutions are cheaper in the long run and look better. And they smell \u2013 genuinely, not artificially.<\/p>\n\n\n\n<p>Saltmarshes absorb carbon from the air and bury it in the mud for decades. They slow down the wave when it hits the bank and create a habitat for those same birds, fish, and invertebrates that keep the ecosystem afloat.<\/p>\n\n\n\n<p>Soft banks are not as spectacular as concrete supports. But <strong>nature doesn&#8217;t compete for likes on Instagram<\/strong>. It works for results \u2013 and has shown more than once that it knows better than we do.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Who_is_Saving_the_River_Mersey_Projects_Communities_Strategy\"><\/span>Who is Saving the River Mersey: Projects, Communities, Strategy<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In saving the Mersey, there is no single hero with a cape and a 20-year strategy. Instead, there are dozens of people, institutions, and initiatives that are pushing this effort forward as best they can \u2013 each from their own side.<\/p>\n\n\n\n<p>One such player is the Mersey Rivers Trust. This team genuinely works with water bodies. It developed the Blueprint for the Mersey Estuary \u2013 a strategic restoration plan that takes into account biology, hydrology, and, importantly, social aspects. That is, it&#8217;s about both how to &#8220;clean up,&#8221; and how to bring the Mersey back into people&#8217;s daily lives.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1366\" src=\"https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-15.png\" alt=\"\" class=\"wp-image-3994\" srcset=\"https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-15.png 2048w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-15-300x200.png 300w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-15-768x512.png 768w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-15-1536x1025.png 1536w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-15-696x464.png 696w, https:\/\/cdn.liverpoolname.com\/wp-content\/uploads\/sites\/61\/2025\/11\/image-15-1068x712.png 1068w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><\/figure>\n\n\n\n<p>Another player is the RSPB (Royal Society for the Protection of Birds). Its mission is to protect the habitats where birds live. The RSPB has repeatedly blocked projects that could destroy saltmarshes or cut off birds from feeding grounds during migrations.<\/p>\n\n\n\n<p>Local councils, scientific institutions, and volunteers are also involved in the process. Some monitor water quality, some conduct tours, and others plant coastal vegetation. And this interaction is often more effective than centralised &#8220;policy from above.&#8221;<\/p>\n\n\n\n<p>The future of the estuary is not decided in one office. It is shaped by small local initiatives. <strong>The authorities have finally stopped competing with nature<\/strong>, starting instead to participate in the care of what was written off as waste yesterday.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"A_Final_Word\"><\/span>A Final Word<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The Mersey is an example of how ecology stops being a niche topic for activists in waders. The restoration of the banks here is closely intertwined with urban planning, community initiatives, and technical solutions. And what is interesting \u2013 it is nature itself that increasingly suggests how to act more effectively. Incidentally, these processes are no less important than <a href=\"https:\/\/liverpool-future.com\/en\/eternal-4206-cybersecurity-in-liverpool-universities-businesses-and-local-authorities-join-forces\" target=\"_blank\" rel=\"noopener\">cybersecurity<\/a> in a city with so much <a href=\"https:\/\/liverpool-future.com\/en\/eternal-4278-cybercrime-in-liverpool-how-hackers-attacked-a-hospital-and-what-happened-next\" target=\"_blank\" rel=\"noopener\">cybercrime<\/a>.<\/p>\n\n\n\n<p>&#8230;Actually, Google says the estuary became tidal long before the industrial era. But its modern appearance largely depends on our choice. On the decisions we make every day.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>For much of the 20th century, the Mersey Estuary was treated as an industrial utility rather than a living system. Its waters and coastal canals received the waste of chemical plants, factories, and the city\u2019s sewage systems. Today, the picture is entirely different. The Mersey Estuary has become a testing ground for a new ecological [&hellip;]<\/p>\n","protected":false},"author":349,"featured_media":3945,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[334],"tags":[2956,2960,2952,2373,1938,2125,2949,2955,2950,2953,2948,1955,2954,2957,2951,2959,2958],"moimportance":[33],"motype":[325],"moformat":[22],"class_list":{"0":"post-3981","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-engineering-solutions","8":"tag-biodiversity-protection","9":"tag-climate-change-and-coasts","10":"tag-coastal-ecosystems","11":"tag-coastal-erosion","12":"tag-green-infrastructure","13":"tag-liverpool-ecology","14":"tag-liverpool-saltmarshes","15":"tag-liverpool-urban-planning","16":"tag-living-shoreline","17":"tag-mersey-basin-campaign-3","18":"tag-mersey-estuary","19":"tag-nature-based-solutions","20":"tag-ramsar-site","21":"tag-saltmarsh-restoration","22":"tag-shoreline-restoration","23":"tag-tidal-zone-mersey","24":"tag-water-resource-management","25":"moimportance-retranslyacziya-v-agregatory","26":"motype-eternal","27":"moformat-longrid-korotka"},"_links":{"self":[{"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/posts\/3981","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/users\/349"}],"replies":[{"embeddable":true,"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/comments?post=3981"}],"version-history":[{"count":6,"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/posts\/3981\/revisions"}],"predecessor-version":[{"id":4141,"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/posts\/3981\/revisions\/4141"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/media\/3945"}],"wp:attachment":[{"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/media?parent=3981"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/categories?post=3981"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/tags?post=3981"},{"taxonomy":"moimportance","embeddable":true,"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/moimportance?post=3981"},{"taxonomy":"motype","embeddable":true,"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/motype?post=3981"},{"taxonomy":"moformat","embeddable":true,"href":"https:\/\/liverpoolname.com\/en\/wp-json\/wp\/v2\/moformat?post=3981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}